Home / 12,110.61-18,165.96-3,677.18

Finding the Fourth Proportional to 12,110.61, 18,165.96 and 3,677.18

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Solution

The fourth proportional to 12,110.61, 18,165.96 and 3,677.18 is: 5,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.61 : 18,165.96 = 3,677.18 : x
  2. Step 2: Convert to fraction form
    12,110.61/18,165.96 = 3,677.18/x
  3. Step 3: Cross multiply
    12,110.61x = 18,165.96 × 3,677.18
  4. Step 4: Simplify right side
    12,110.61x = 66,799,504.79
  5. Step 5: Solve for x
    x = 66,799,504.79/12,110.61
  6. Step 6: Final answer
    x = 5,515.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.